Power shovel or excavator



Dec. 4, 1928.

B. C. CLUTTER POWER SHOVEL OR XCAVA'VIOR Filed Jan-4, 1926 4 Sheets-Sheet 2 INVENTOR. Een 6. 2z/rm? fi? (2 7 A TToRNEY Dec. 4, 1928.`

B. c. cLUTTER POWER sHovEL 0R EXCAVATOR Fiied Jan. 4, 1926 4 sheets-sheet f ATTORMQ Dec. 4, 1928. 1,693,809

. B. C. CLUTTER POWER sHovEL 0R EXcAvAToR Filed Jan. 4, 1926 4 Sheets-Sheet 4 INVENTOR.

.,B/RD T La7-rex ATTORNEY.

i 45 may be of the full revolving Patented 'nee 4, 192s.

UNITED STATES PATENT oEEicE.

BIRD C. CLUTTER, l' AKRON, OHIO, ASSIGNOB, BY MESNE ASSIGNMENTS, T0 CLUTTEIR- "WAGNER, INC., 4.A CORPORATION 0F OHIO. p

POWER SHOVEL OB EXCA'VATOB.

' l0 and to rovide a ditcher scoop capable of be ing ad]usted into a' position for performing a raking action, as for example, on walls, etc. The construction employed for mounting the ditcher on the frame also is adapted for mounting of other of the Well knownexcavator attachments thereon.

.The fore oing and other objects are'. obtained by 't e construction illustrated in the accom anyin drawings and described in detail be ow. t is to be understood that the invention is not limited to thezspecific form thereof shown and described. E

Of the accompanying drawings:

attachment Figure 2 is mounting for and Fi re 3 is a section therethrough on line 3--3 o Figure 2;

of the invention mountedther-ea detail side elevation offa Figure 4 1s an endelevation andV Figure 5 is a side elevation ofy a portion of the pullback means for controlling the dipper stick; r

Figure 6 is aside elevation and Figure 7 1s an end elevation of the scoop and illustrating the sition's-to which it may be adjusted on the ipper stick;

Figure 8 is .aview illustrating the' operation ofthe ditcher scoop as a rake on the side of a wall; Referring to the drawings, 10 illustrates a power shovel orexcavating apparatus which type and which, as shown, is ofthat type escribed in Reisuse Patent No. 16,107, granted July 7, 1925, to LeRoy P. Clutter et al., the boom shownin that patent being removed and replaced by the dltcher attachment of the invention which includes a boom 11 pivoted on a shaft 12 consituting the sha-ft supporting theboom in the patented' construction and on which are gears as shown at 13 meshed with racks indicated at the boom on theshovel frame 14, and on which are also rollers 15 operable on' a track 16. The shaft 12' with rollers 15 o rable on tracks 16 and with gears 13 opera le by racks 14 constitute the operating means 'for the scoop carrying boom `in the patent referred to, to which the boom mount here shown is adapted.

The tracks 16 provide a support on which the shaft'12 ma be secured in any desired position to provi e a fixed pivot for the boom 11. For securing the shaft 12 in position, a clevs 17 is providedffor cooperation with each gear 13. Each clevs 17 is formed on its inner curved periphery with a, plurality of gear-like teeth 18, 18 arranged to mesh` in the teeth of a gear 13 and -ormed'on the bot tom of its 'eet with gear-like teeth 19, 19 adapted. to" mesh .with the teeth of Ieach rack 14., Each clevs 17 has hook-bolts 20, 20 on the feet thereof arranged to engage -under racks 14 to clamp theclevis tightly in place andl by means oi the engagement of teeth 18 l J with each gear 13 positively clamping shaft Figure 1 is a side elevation of a known` 25 type of shovel apparatus having the ditcher ble typeY and may carry the scoop `paralleling attachment disclosed and claimed in a.V cogending application-of the present inventor,

@rial No. 641,532, flied May 2e, i923, which has matured into Patent No. 1,561,694,v

granted Nov. 17, 1925, and which includes a link 21'which, in the present construction, is adjustably but fiXedly pivoted on the shovel frame 10 by means of a fun-shaped bracket v22 formed lntegral with a clevs 17 and hav- `ing a series of apertures 23,23 arranged along an arc to receive a pivot pin for llink 21. Ad-

justability of the ivot of. link 21 on the shovel frame bodily wit i the pivot 'ofthe boom 12 is necessary for obvious reasons,l but adjustment of the pivot of link,.21 on bracket 22 along the arc shown is necessary for the rea` son that where clevs 17 is secured onto the' arc-shaped portion of tracks 16 adjacent the I fronto the shovel frame, the bracket 22 will assume an angular position different from that on a straight portion ofthe tracks.

The dipper stick is shown at 24 and is pivoted at 25 on the boom. The link 21 of the paralleling'attachment is pivoted on one arm 26 of a bell crank lever pivoted. on boom 11- with dipper stick 24 and the other Varm 27 of which has pivotallyonnected thereto the 28. The pivot of link 28 on arm 27 is adjustable to apertures 29,29 infarm 27'V for The scoop, designatedy by theV numeral 30,

may be of any suitable t pe and is pivotally secured on the lower en of stick^24and has removably attached thereto the lower end of link 28. Control of the scoop-is accom-y plished by means of a drag line 31 vconnected thereto andl b means of a hoistline 32 so connected to ipper stick 24 asto operate asa pull back line also. Line 31 winds onto adrum 33 of small diameter journaled onto boom 11 and rotatively connected to a lar er drum 34 journaled on said boom on which winds a lme 35 passing over a sheave 36 on shovel frame l() and winding onto one of a set of power driven drums 37 driven by the prime mover 38 ofthe shovelapparatus and controlled by the usual devices (not shown).

The hoist line' 32 is connected to the dipper. stick 24 below its ivot on the boom 11 and is trained outwardly about a sheave 39 on the outer end of the boom, over a sheave 40 dipper stick 24 in paral p To this` end link 28 is removabl attached to supported on a bracket 41 on shovel 10, and

winding onto another of drums 37 By this means a pull on the line 32 will be directly effective either to hoist the boom or to swing back the dipperstick 24 to the position shown' in dotted llnes in Figure 1, or both actions simultaneously depending upon the proper manipulation of line 31.- j

It is' contemplated that an effective rake may be obtained by supporting scoop 30 on elism with sald stick.

the scoop as by means of a bo' t or pin 42 passed into an aperture in a bracket 43 secured on the rear endl of scoo 30. Accordingly link 28 may be remove to permit the scoop 30 to be swung to the dotted line posi-v` tion shown in Fi ure 6. Tosecure the scoof 30 in the dotted ine position, an aperture bracket 44 may be so mounted on dipper stick 24 that when scoop 30 is swung to said position, a in such as 42 may be engaged through rackets 43 and 44 tol hold the scoop in lace. 4 i y n the use of the device, the boom pivot 12 is Iirst secured by means of the clevises 17 in the position of the shovel frame which will be most effective, depending 4on the particular working conditions, The boom 11 is then pivotally secured on shaft 12, the parallelin 'attachment being ap lied or not as desir this attachment not eing a feature of the present invention. kThe drag line 31 and pull back line 32 are then connected up in theV manner shown in Figure-1.

In operati-on, an excavatin or digging action is obtained by pulling t e 'dipper stick n track 1n its frame, wai-d1 at its forward end, anda ivot mem# ber a aptedto be moved alon said track, of

p 1,693,809 if 24 out as far asnecessary, it being` possible l vtov pull it out to a position substantlally as shown in dotted lines in Figure l byproper operation of lines 31 and 32, and at the lsame time permitting boom 11 to descend to carry the scoop, to dig 'ng position.` VCrowding of v.the scoop throng the ground is vthen effected by line 31, line 32.l being permitted `to pay out as vwillhe understood. When the scoop is lo`aded,`lines 31 and`32 are so controlled as to elevatev the boom i111, line 31 being. tensioned and the elevation or hoistingbemg accomplished by the line 32. The load may now'be dum ed 1n`the usualway. v

When it is `desired to use the. scoo'p as a rake, the lscoo line positiono -Figure 6 and is operated down a wall by proper'control of the stick 24 with y lines 31 and 32 in the manner illustrated in suit various working conditions;fadjustaable.

mounting ofthe scoop on d1 perstick to pro- 30 isadjusted to the dotted g videaxrake;andprov1s1on o apower-increas-r lng drum construction in the drag line. It will v also be apparent that the mounting for the@ ditcher boom may be employed for mounting of otherthereon. l V t I AModifications of the invention may be resorted to without departing from the spirit thereof and thescoper of the appended claims.

Whatisclaimedis:r f

1. The combination with excavator; 4

apparatus havin a 'scoop-crowding rack extending forwar y on the frame thereof and a shaft having a gear mashed with -said rack `of an excavator attachment ivoted on said shaft anda clevis adapted -to e clamped over said gear and onto saldrack, said clevis hav ing teeth adapted to mesh with said gear and ot erteeth adapted toume'sh with said rack to secure said shaft in any ldesired position on said rack. f p 4 2. The v combination with an `excavator apparatus having a forwardly extendi' track. in its frame and a ivot member adapted tobe moved along sai track, of an excavap means for securing said memberon the track in an .desired osltion.

`types of excavatorattachments hev comination with an excavator i apparatus having a forwardlyY extending said track extending upan4 excavator attachment inc uding a main -boom adapted to be mounted on thepivot member, and means for securing said memberV on the track in anydesiredpositin,

4. In a ditcher l'attachment shovel apparatus, a dipper stick, a scoop pivshovel apparatus, a dipper stick, a scoop oted adjacent its mouth on said dipper stick, mounted on the stick, means for holding the 10 means for normally holding the scoo subscoo in a substantially horizontal posltion stantially horizontal, and means Where y the on t e stick, and means for holding the scoop 5 scoop may be connected to-said stick in an adin an adjusted vertical position on the stick 'usted substantially vertical position, wherewhereby it may function as a rake.

y said scoop is converted into a rake.

5. In a ditcher attachment for power I BIRD C. CLUTTER. 

